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Necking behavior of low‐density polyethylene‐isotactic polypropylene blends: A morphological investigation
Author(s) -
Rizzo Giovanni,
Spadaro Giuseppe
Publication year - 1984
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760240406
Subject(s) - necking , materials science , tacticity , polypropylene , scanning electron microscope , composite material , morphology (biology) , polyethylene , ultimate tensile strength , low density polyethylene , polymer , polymerization , biology , genetics
The tensile behavior of low‐density polyethylene‐isotactic polypropylene blends was investigated at room temperature. Neck formation and propagation along the whole length of the samples were observed for the whole range of composition. This behavior, which is not indicated by most data available in the literature, was examined in relation to sample morphology by scanning electron microscopy. The results of this investigation indicated some differences between the morphology of these materials and the morphology of blends which do not undergo necking propagation.